its ok you can improve everything :

I dont know about you, but as far as i can remember eating/drinking out was seen as luxury.
My parents used to cook and pack all their work lunch meals.
As family day out, we would eat sandwiches prepared back home.

Just this saves a ton of money, and also soda is bad for health.
Switch it for some flavored water you can prepare at home. Lemon water, mint water, orange water. Or even some sugary powder if you really crave it.